51122440

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{4973}}^1$

素因数の和:5241

約数の個数: 32

約数和(自身を含む): 115496280

約数和(自身を除く): 64373840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 4973, 5140, 9946, 10280, 19892, 24865, 39784, 49730, 99460, 198920, 1278061, 2556122, 5112244, 6390305, 10224488, 12780610, 25561220, 51122440]

約数ペア:

[(1, 51122440), (2, 25561220), (4, 12780610), (5, 10224488), (8, 6390305), (10, 5112244), (20, 2556122), (40, 1278061), (257, 198920), (514, 99460), (1028, 49730), (1285, 39784), (2056, 24865), (2570, 19892), (4973, 10280), (5140, 9946)]